DeWalt DW 443 Owner's manual

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Copyright DEWALT

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ENGLISH

21

RIGHT ANGLE RANDOM ORBIT SANDER

DW443

Congratulations!

You have chosen a DEWALT tool. Years of

experience, thorough product development and

innovation make DEWALT one of the most reliable

partners for professional power tool users.

Technical Data

DW443

Voltage V 230

Type 2

Power input W 530

Pad diameter mm 150

Orbits min

-1

4,000–7,600

Orbit mm 5

Dust extraction dustbag/

vacuum extractor

Weight kg 2.7

L

PA

(sound pressure) dB(A)

85

K

PA

(sound pressure uncertainty) dB(A)

3

L

WA

(sound power) dB(A)

96

K

WA

(sound power uncertainty) dB(A)

5.2

Vibration total values (triax vector sum) determined

according to EN 60745:

Vibration emission value a

h

a

h

=

m/s²

4.5

Uncertainty K = m/s²

1.5

The vibration emission level given in this information

sheet has been measured in accordance with a

standardised test given in EN 60745 and may be

used to compare one tool with another. It may be

used for a preliminary assessment of exposure.

WARNING: The declared vibration

emission level represents the main

applications of the tool. However if the

tool is used for different applications,

with different accessories or poorly

maintained, the vibration emission may

differ. This may significantly increase the

exposure level over the total working

period.

An estimation of the level of exposure to

vibration should also take into account

the times when the tool is switched off

or when it is running but not actually

doing the job. This may significantly

reduce the exposure level over the total

working period.

Identify additional safety measures to

protect the operator from the effects of

vibration such as: maintain the tool and

the accessories, keep the hands warm,

organisation of work patterns.

Fuses:

Europe 230 V tools 10 Amperes, mains

U.K. & Ireland 230 V tools 13 Amperes, in plugs

Deﬁ nitions: Safety Guidelines

The definitions below describe the level of severity

for each signal word. Please read the manual and

pay attention to these symbols.

DANGER: Indicates an imminently

hazardous situation which, if not avoided,

will result in death or serious injury.

WARNING: Indicates a potentially

hazardous situation which, if not

avoided, could result in death or

serious injury.

CAUTION: Indicates a potentially

hazardous situation which, if not

avoided, may result in minor or

moderate injury.

NOTICE: Indicates a practice not

related to personal injury which, if

not avoided, may result in property

damage.

Denotes risk of electric shock.

Denotes risk of fire.

Denotes risk of explosion

ENGLISH

22

EC-Declaration of Conformity

MACHINERY DIRECTIVE

DW443

D

EWALT declares that these products described

under “technical data” are in compliance with:

2006/42/EC, EN 60745-1, EN 60745-2-4

These products also comply with Directive

2004/108/EC. For more information, please contact

DEWALT at the following address or refer to the

back of the manual.

The undersigned is responsible for compilation of the

technical file and makes this declaration on behalf of

DEWALT.

Horst Grossmann

Vice President Engineering and Product

Development

DEWALT, Richard-Klinger-Straße 11,

D-65510, Idstein, Germany

31.12.2009

WARNING: To reduce the risk of injury,

read the instruction manual.

General Power Tool Safety Warnings

WARNING! Read all safety warnings

and instructions Failure to follow the

warnings and instructions may result in

electric shock, fire and/or serious injury.

SAVE ALL WARNINGS AND INSTRUCTIONS

FOR FUTURE REFERENCE

The term “power tool” in the warnings refers

to your mains-operated (corded) power tool or

battery-operated (cordless) power tool.

1) WORK AREA SAFETY

a) Keep work area clean and well lit.

Cluttered or dark areas invite accidents.

b) Do not operate power tools in explosive

atmospheres, such as in the presence of

flammable liquids, gases or dust. Power

tools create sparks which may ignite the dust

or fumes.

c) Keep children and bystanders away while

operating a power tool. Distractions can

cause you to lose control.

2) ELECTRICAL SAFETY

a) Power tool plugs must match the outlet.

Never modify the plug in any way. Do

not use any adapter plugs with earthed

(grounded) power tools. Unmodified plugs

and matching outlets will reduce risk of

electric shock.

b) Avoid body contact with earthed or

grounded surfaces such as pipes,

radiators, ranges and refrigerators. There

is an increased risk of electric shock if your

body is earthed or grounded.

c) Do not expose power tools to rain or wet

conditions. Water entering a power tool will

increase the risk of electric shock.

d) Do not abuse the cord. Never use the

cord for carrying, pulling or unplugging

the power tool. Keep cord away from

heat, oil, sharp edges or moving parts.

Damaged or entangled cords increase the

risk of electric shock.

e) When operating a power tool outdoors,

use an extension cord suitable for outdoor

use. Use of a cord suitable for outdoor use

reduces the risk of electric shock.

f) If operating a power tool in a damp

location is unavoidable, use a residual

current device (RCD) protected supply.

Use of an RCD reduces the risk of electric

shock.

3) PERSONAL SAFETY

a) Stay alert, watch what you are doing and

use common sense when operating a

power tool. Do not use a power tool while

you are tired or under the influence of

drugs, alcohol or medication. A moment of

inattention while operating power tools may

result in serious personal injury.

b) Use personal protective equipment.

Always wear eye protection. Protective

equipment such as dust mask, non-skid

safety shoes, hard hat, or hearing protection

used for appropriate conditions will reduce

personal injuries.

c) Prevent unintentional starting. Ensure

the switch is in the off position before

connecting to power source and/or

battery pack, picking up or carrying the

tool. Carrying power tools with your finger

on the switch or energising power tools that

have the switch on invites accidents.

d) Remove any adjusting key or wrench

before turning the power tool on. A

ENGLISH

23

wrench or a key left attached to a rotating

part of the power tool may result in personal

injury.

e) Do not overreach. Keep proper

footing and balance at all times. This

enables better control of the power tool in

unexpected situations.

f) Dress properly. Do not wear loose

clothing or jewellery. Keep your hair,

clothing and gloves away from moving

parts. Loose clothes, jewellery or long hair

can be caught in moving parts.

g) If devices are provided for the connection

of dust extraction and collection facilities,

ensure these are connected and properly

used. Use of dust collection can reduce

dust-related hazards.

4) POWER TOOL USE AND CARE

a) Do not force the power tool. Use the

correct power tool for your application.

The correct power tool will do the job

better and safer at the rate for which it

was designed.

b) Do not use the power tool if the switch

does not turn it on and off. Any power

tool that cannot be controlled with the switch

is dangerous and must be repaired.

c) Disconnect the plug from the power

source and/or the battery pack from

the power tool before making any

adjustments, changing accessories, or

storing power tools. Such preventive safety

measures reduce the risk of starting the

power tool accidentally.

d) Store idle power tools out of the reach

of children and do not allow persons

unfamiliar with the power tool or these

instructions to operate the power tool.

Power tools are dangerous in the hands of

untrained users.

e) Maintain power tools. Check for

misalignment or binding of moving parts,

breakage of parts and any other condition

that may affect the power tool’s operation.

If damaged, have the power tool repaired

before use. Many accidents are caused by

poorly maintained power tools.

f) Keep cutting tools sharp and clean.

Properly maintained cutting tools with sharp

cutting edges are less likely to bind and are

easier to control.

g) Use the power tool, accessories and

tool bits etc., in accordance with these

instructions taking into account the

working conditions and the work to

be performed. Use of the power tool for

operations different from those intended

could result in a hazardous situation.

5) SERVICE

a) Have your power tool serviced by a

qualified repair person using only identical

replacement parts. This will ensure that the

safety of the power tool is maintained.

Additional Speciﬁ c Safety Rules for

Right Angle Random Orbit Sanders

• Hold power tools by insulated gripping

surfaces when performing an operation

where the cutting tool may contact hidden

wiring or its own cord. Cutting accessory

contacting a “live” wire may make exposed

metal parts of the tool “live” and shock the

operator.

• Take special care when sanding some woods

(e.g. beech, oak) and metal which may produce

toxic dust. Wear a dust mask specifically

designed for protection against toxic dust

and fumes and ensure that persons within or

entering the work area are also protected.

PRECAUTIONS TO TAKE WHEN SANDING PAINT

1. Sanding of lead based paint is NOT

RECOMMENDED due to the difficulty of

controlling the contaminated dust. The

greatest danger of lead poisoning is to

children and pregnant women.

2. Since it is difficult to identify whether or not

a paint contains lead without a chemical

analysis, we recommend the following

precautions when sanding any paint:

PERSONAL SAFETY

1. No children or pregnant women should enter

the work area where the paint sanding is

being done until all clean up is completed.

2. A dust mask or respirator should be worn

by all persons entering the work area. The

filter should be replaced daily or whenever

the wearer has difficulty breathing. See your

local hardware store for the proper NIOSH-

approved dust mask.

3. NO EATING, DRINKING or SMOKING should

be done in the work area to prevent ingesting

contaminated paint particles. Workers

should wash and clean up BEFORE eating,

drinking or smoking. Articles of food, drink,

or smoking should not be left in the work

area where dust would settle on them.

ENGLISH

24

ENVIRONMENTAL SAFETY

1. Paint should be removed in such a

manner as to minimize the amount of dust

generated.

2. Areas where paint removal is occurring

should be sealed with plastic sheeting of

4 mils thickness.

3. Sanding should be done in a manner to

reduce tracking of paint dust outside the

work area.

CLEANING AND DISPOSAL

1. All surfaces in the work area should be

vacuumed and thoroughly cleaned daily for

the duration of the sanding project. Vacuum

filter bags should be changed frequently.

2. Plastic drop cloths should be gathered up

and disposed of along with any dust chips

or other removal debris. They should be

placed in sealed refuse receptacles and

disposed of through regular trash pick-up

procedures. During clean up, children and

pregnant women should be kept away from

the immediate work area.

3. All toys, washable furniture and utensils used

by children should be washed thoroughly

before being used again.

Residual Risks

In spite of the application of the relevant safety

regulations and the implementation of safety

devices, certain residual risks cannot be avoided.

These are:

– Impairment of hearing .

– Risk of personal injury due flying particles.

– Risk of burns due to accessories becoming hot

during operation.

– Risk of personal injury due to prolonged use.

Markings on Tool

The following pictograms are shown on the tool:

Read instruction manual before use.

DATE CODE POSITION (FIG. 1)

The Date Code (l), which also includes the year of

manufacture, is printed into the housing.

Example:

2010 XX XX

Year of Manufacture

Package Contents

The package contains:

1 Right angle random orbit sander

1 Dustbag

1 Vacuum extractor adaptor

1 Side handle

1 Sheet of sanding paper

1 Instruction manual

1 Exploded drawing

• Check for damage to the tool, parts or

accessories which may have occurred during

transport.

• Take the time to thoroughly read and

understand this manual prior to operation.

Description (ﬁ g. 1)

WARNING: Never modify the power

tool or any part of it. Damage or

personal injury could result.

a. On/off switch

b. Electronic speed control dial

c. Dustbag

d. Vacuum extractor adaptor (option)

e. Dustbag adaptor

f. Side handle

g. Dust extractor spout

h. Hook and loop sanding pad

i. Dust channel

j. Main handle

INTENDED USE

Your DEWALT DW443 right angle random orbit

sander has been designed for proffesional sanding

of wood and plastics.

DO NOT use under wet conditions or in presence of

flammable liquids or gases.

The right angle random orbit sander is a professional

power tool.

DO NOT let children come into contact with the

tool. Supervision is required when inexperienced

operators use this tool.

Electrical Safety

The electric motor has been designed for one

voltage only. Always check that the power supply

corresponds to the voltage on the rating plate.

ENGLISH

25

Your DEWALT tool is double insulated in

accordance with EN 60745; therefore no

earth wire is required.

If the supply cord is damaged, it must be replaced

by a specially prepared cord available through the

DEWALT service organisation.

Mains Plug Replacement

(U.K. & Ireland Only)

If a new mains plug needs to be fitted:

• Safely dispose of the old plug.

• Connect the brown lead to the live terminal in

the plug.

• Connect the blue lead to the neutral terminal.

WARNING: No connection is to be

made to the earth terminal.

Follow the fitting instructions supplied with good

quality plugs. Recommended fuse: 13 A.

Using an Extension Cable

If an extension cable is required, use an approved

3–core extension cable suitable for the power

input of this tool (see technical data).The minimum

conductor size is 1.5 mm

2

; the maximum length is

30 m.

When using a cable reel, always unwind the cable

completely.

ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of

injury, turn unit off and disconnect

machine from power source before

installing and removing accessories,

before adjusting or changing set-

ups or when making repairs. Be sure

the trigger switch is in the OFF position.

An accidental start-up can cause injury.

Fitting Sanding Discs (ﬁ g. 2)

Your sander uses 150 mm hook and loop sanding

discs with a 6 hole dust extraction pattern.

1. Place the sander on a table, sanding pad (h) up.

2. Place the sanding disc directly on top of the

sanding pad.

3. Hold the sanding pad (h) with one hand and

align the dust extraction holes (k).

Electronic Speed Control Dial (ﬁ g. 3)

Your sander is equipped with an electronic speed

control dial (b) with 5 positions. Generally, harder

materials require a higher setting. The correct set-

ting, however, is a matter of experience.

FITTING THE SIDE HANDLE (FIG. 4)

1. Remove the plastic screw (o).

2. Mount the side handle (f) on either side of the

tool.

Dust Extraction

Since woodworking with a sander produces dust,

always install the dustbag or connect a vacuum

extractor designed in compliance with the applicable

directives regarding dust emission. Proper dust

extraction will only be achieved with perforated

abrasive.

WARNING: Do not use a dustbag or

vacuum extractor when sanding metal.

WARNING: Do not sand magnesium!

Dustbag (ﬁ g. 1)

Attach the dustbag (c) with the dustbag adaptor (e)

to the dust extraction spout (g). For efficient dust

extraction empty the bag when it is about one third

full.

Vacuum Extractor (ﬁ g. 5)

1. Remove the dustbag adaptor (e) by pulling it

firmly off the dust extraction spout (g).

2. Attach the vacuum extractor adaptor (d) to the

dust extraction spout (g).

3. Connect the vacuum extractor to the vacuum

extractor adaptor (d).

OPERATION

Instructions for Use

WARNING: Always observe the safety

instructions and applicable regulations.

WARNING: Apply only a gentle

pressure to the workpiece. Excessive

pressure does not improve the sanding

effect, but only results in an increased

load on the machine and causes the

abrasive to tear.

WARNING: Avoid overloading.

ENGLISH

26

Proper Hand Position (ﬁ g. 1, 7)

WARNING: To reduce the risk of

serious personal injury, ALWAYS use

proper hand position as shown.

WARNING: To reduce the risk of

serious personal injury, ALWAYS hold

securely in anticipation of a sudden

reaction.

Proper hand position requires one hand on the side

handle (f), with the other hand on the main handle (j).

Sanding (ﬁ g. 1)

This random orbit sander produces small scratch

marks in all directions. Therefore, it is not necessary

to sand with the grain.

1. If necessary, fit the side handle (f).

2. Set the sanding speed using the electronic

speed control dial (b).

3. Turn the sander on using the on/off switch (a).

I = on

O = off

4. Start with the coarsest grit size.

5. Check your work at short intervals.

6. Always switch off the tool when work is finished

and before unplugging.

MAINTENANCE

Your DEWALT power tool has been designed to

operate over a long period of time with a minimum

of maintenance. Continuous satisfactory operation

depends upon proper tool care and regular cleaning.

WARNING: To reduce the risk of

injury, turn unit off and disconnect

machine from power source before

installing and removing accessories,

before adjusting or changing set-

ups or when making repairs. Be sure

the trigger switch is in the OFF position.

An accidental start-up can cause injury.

Replacing the Sanding Pad and the

Speed Limiter Disc (ﬁ g. 6)

Both the sanding pad (h) and the speed limiter disc

(m) are consumable parts. The sanding pad needs

replacement when signs of wear become evident.

The speed limiter disc needs replacement when the

sanding pad speed increases dramatically when

lifting the sander off the workpiece.

1. Unplug the tool.

2. Loosen the 4 hex head screws (n) and remove

the pad.

3. Replace the sanding pad (h) and/or speed

limiter disc (m) and tighten the Hex head screws

(n), making sure the speed limiter disc is aligned

properly.

Lubrication

Your power tool requires no additional lubrication.

Cleaning

WARNING: Blow dirt and dust out of

the main housing with dry air as often as

dirt is seen collecting in and around the

air vents. Wear approved eye protection

and approved dust mask when

performing this procedure.

WARNING: Never use solvents or

other harsh chemicals for cleaning the

non-metallic parts of the tool. These

chemicals may weaken the materials

used in these parts. Use a cloth

dampened only with water and mild

soap. Never let any liquid get inside the

tool; never immerse any part of the tool

into a liquid.

Optional Accessories

WARNING: Since accessories, other

than those offered by DEWALT, have

not been tested with this product, use

of such accessories with this tool could

be hazardous. To reduce the risk of

injury, only DEWALT, recommended

accessories should be used with this

product.

Consult your dealer for further information on the

appropriate accessories.

Protecting the Environment

Separate collection. This product must

not be disposed of with normal

household waste.

ENGLISH

27

Should you ﬁnd one day that your DEWALT product

needs replacement, or if it is of no further use to you,

do not dispose of it with household waste. Make this

product available for separate collection.

Separate collection of used products

and packaging allows materials to be

recycled and used again. Re-use of

recycled materials helps prevent

environmental pollution and reduces

the demand for raw materials.

Local regulations may provide for separate collection

of electrical products from the household, at

municipal waste sites or by the retailer when you

purchase a new product.

D

EWALT provides a facility for the collection and

recycling of DEWALT products once they have

reached the end of their working life. To take

advantage of this service please return your product

to any authorised repair agent who will collect them

on our behalf.

You can check the location of your nearest

authorised repair agent by contacting your local

DEWALT office at the address indicated in this

manual. Alternatively, a list of authorised DEWALT

repair agents and full details of our after-sales

service and contacts are available on the Internet at:

www.2helpU.com.

GUARANTEE

DEWALT is confident of the quality of its

products and offers an outstanding guarantee

for professional users of the product. This

guarantee statement is in addition to and in

no way prejudices your contractual rights as a

professional user or your statutory rights as a

private non-professional user. The guarantee

is valid within the territories of the Member

States of the European Union and the

European Free Trade Area.

• 30 DAY NO RISK SATISFACTION GUARANTEE •

If you are not completely satisfied with the

performance of your D

EWALT tool, simply

return it within 30 days, complete with all

original components, as purchased, to

the point of purchase, for a full refund or

exchange. The product must have been

subject to fair wear and tear and proof of

purchase must be produced.

• ONE YEAR FREE SERVICE CONTRACT •

If you need maintenance or service for your

D

EWALT tool, in the 12 months following

purchase, you are entitled to one service free

of charge. It will be undertaken free of charge

at an authorised DEWALT repair agent. Proof

of purchase must be produced. Includes

labour. Excludes accessories and spare parts

unless failed under warranty.

• ONE YEAR FULL WARRANTY •

If your D

EWALT product becomes defective

due to faulty materials or workmanship

within 12 months from the date of purchase,

DEWALT guarantees to replace all defective

parts free of charge or – at our discretion –

replace the unit free of charge provided that:

• The product has not been misused;

• The product has been subject to fair

wear and tear;

• Repairs have not been attempted by

unauthorised persons;

• Proof of purchase is produced.

• The product is returned complete with all

original components

If you wish to make a claim, contact your

seller or check the location of your nearest

authorised DEWALT repair agent in the

DEWALT catalogue or contact your DEWALT

office at the address indicated in this manual.

A list of authorised DEWALT repair agents and

full details of our after-sales service is available

on the Internet at: www.2helpU.com

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